title: [Preoperative assessment for the risk of postoperative pulmonary complications in patients with esophageal cancer].
abstract: Retrospective study was carried out to assess pulmonary complications in 50 patients with esophageal cancer who underwent esophagectomy over the last 5 years. Spirometrical parameters such as V25 and V50/V25, which reflect small air way closure of the lung, were studied preoperatively and compared with the incidence of postoperative expectoration disorders such as atelectasis and/or pneumonia. All patients developed the pulmonary complications after the operation in following conditions: 1) V25 less than 0.3 l/sec and V50/V25 greater than 4 in patients without thoracotomy; 2) V25 less than 1.0 1/sec and V50/V25 greater than 3 in patients with thoracotomy; 3) V25 less than 1.0 l/sec and V50/V25 less than 3 with closed pattern of the V-V curve in patients with thoracotomy. Although the causes of postoperative pulmonary complications are multifactorial, the preoperative values of V25 and V50/V25 are considered to be useful indices to decide the optimal operative procedure and predict the postoperative pulmonary complications.
authors.affiliation: Department of Surgery, Kansai Medical University, Osaka, Japan.
authors.forename: Y
authors.initials: Y
authors.lastname: Kawaguchi
mesh_terms: D000328:Adult; D000367:Age Factors; D000368:Aged; D000369:Aged, 80 and over; D004938:Esophageal Neoplasms / Q000601:surgery*; D005260:Female; D006801:Humans; D008171:Lung Diseases / Q000175:diagnosis*; D008297:Male; D008875:Middle Aged; D011183:Postoperative Complications / Q000175:diagnosis*; D012129:Respiratory Function Tests; D012189:Retrospective Studies; D012306:Risk